RasPro

We present you the brand new RasPro developed by a crew of experienced pro designers from NeRD!! Let’s start by introducing ourselves… NeRD is a group of college students of many fields of engineering from the University of Aveiro, Portugal. The name itself isn’t only a clever pun, but also an acronym for “Núcleo de Robótica Diversificada” (Nucleus of Diversified Robotics). It came to mind a certain new computer release and an IKEA kitchen appliance…

In one of our brain storming lunches we came to the conclusion that buying that computer would take 6 years of our annual budget... but we wanna it... Being the NeRDs that we are (pun intended) we thought about the ridiculous concept of having a computer inside a grater. The problem was that the concept became less and less ridiculous and people started drawing and laughing and drawing more... and digging from the scrap pile for parts. And so the RasPro Project came to life!!

Get ready for some hours of printing and while that goes underway why not chill and eat some raspberries or another type of fruit?

Supplies:

· 1 Power supply AC to DC v5/12V

· 1 Raspberry Pi 3 model b+

· 1 computer fan 40x40 mm

· 1 IKEA grater

· 1 speaker

· HDMI adapter

· Power cable

· Audio Jack 3.5mm (mono)

· AC connector with a switch (optional)

Crafting/Structure:

· 3D Printer

· PLA

Tools:

· Dremel with a cutting disk

· Hot glue gun

· Screws and nuts

As for the files for printing they are available here.

https://www.thingiverse.com/thing:3690991

Step 1: Step 1: Printing the Skeleton

First of
all you need to start by printing the main structure by the name of Skeleton; on our model the color chosen was black. It’s highly recommended that you set up the printer to 20% of infill with a resolution of 0.2 with support enabled.

Ahhh the skeleton... a beautiful piece of NeRD design and engineering… It´s ready for that awesome hardware but first you need to dry fit all the components.

Step 2: Step 2: POWER!

Now at last with all the components fitted on their places we shall begin! To mount the power supply you need secure it tightly to the base, hot glue works miracles doesn’t it? Now you must leave available 5V to power the Raspberry (we chose to connect to the GPIO, although you have the option to use the USB) and the 12V for powering the fan later on. Don’t forget of course to install correctly the AC connector and to glue it on the side of the Skeleton.

Step 3: Step 3: the Brain or Rasp

See? It’s easy! While doing the following steps it’s recommended that you begin printing The RasPro Foot and RasPro Top both with 25% infill and a resolution of 0.2. The later should have 3 top layers. Now the brain! If you completed Step 1 it should fit right on and you can glue it to the main structure.

Step 4: Step 4: the Fan

Unlike the previous Steps glue isn’t needed! The fan is positioned on the large square socket which you can secure with the screws and nuts for easy maintenance. Now you can connect the 12V cable left available at Step 2 to the fan and voilá!

Step 5: Step 5: Electrify the Beast!

Onward to the dangerous part of the project. To power the Raspberry we opted to connect the 5V to the GPIO pins, although you also have the option to connect it to the USB. This choice we leave to your experience and preference. To power the fan you must connect the 12V and it’s more or less complete!

Step 6: Step 6: HDMI and Speaker

The semi-final step consists in attaching the HDMI adapter directly on the port of the Raspberry and fit it to be accessible from the side! To connect the speaker you must attach first of all the Audio Jack to the speaker. At last just pop the jack on the respective audio output on the Raspberry and it’s DONE!

Step 7: Step 7: Tcha-dan!!

On this last step you must cut a hole on the chosen side of the grater, in a way that all the connectors are accessible. Put the whole structure inside the grater, glue the RasPro Top to close the machine and glue the RasPro Feet. Tcha-dan! You are now a proud owner of a RasPro!

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    Discussions

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    MikB

    Tip 26 days ago

    Cool project, but I see no mention of safety earthing. As this is a metal case, and liable to come in contact with high voltages (including from a power supply held down with hot glue!) please remember to add a firm connection bolted to the grater to the incoming IEC earth.